
class clock_test:
    number=None
    price=None

    def ring(self):
        print('\a')


clock1=clock_test()
clock1.number=1996
clock1.price=29

print(f"clock number{clock1.number},clock price{clock1.price}")
clock1.ring()

clock2=clock_test()
clock2.number=1996
clock2.price=29
print(f"clock number{clock2.number},clock price{clock2.price}")
clock2.ring()